Gb minor 9th chord
Gbm9 chord for piano with keyboard diagram.
Explanation: The Gb minor ninth is a five note chord. For practical reasons the chord is normally played with omitted notes and/or inverted. The chord is often abbreviated as Gbm9.
Theory: The Gbm9 chord is constructed with a root, a minor third, a perfect fifth, a minor seventh and a major ninth.
Notes: Gb - A - Db - E - Ab / Gb - Bbb - Db - Fb - Ab